Image for a portion of a display screen



The FIGURE is a front view of an image for a portion of a display screen showing our new design.

The broken line showing of various regions and the unshaded area there within form no part of the claimed design. The broken line showing of the remainder of the taskbar and the display screen are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an image for a portion of a display screen, as shown and described. 